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Altered functional connectivity links in neuroleptic-naïve and neuroleptic-treated patients with schizophrenia, and their relation to symptoms including volition
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Pu, Weidan, Rolls, Edmund T., Guo, Shuixia, Liu, Haihong, Yu, Yun, Xue, Zhimin, Feng, Jianfeng and Liu, Zhening (2014) Altered functional connectivity links in neuroleptic-naïve and neuroleptic-treated patients with schizophrenia, and their relation to symptoms including volition. NeuroImage: Clinical, Volume 6 . pp. 463-474. doi:10.1016/j.nicl.2014.10.004 ISSN 2213-1582.
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Official URL: http://dx.doi.org/10.1016/j.nicl.2014.10.004
Abstract
In order to analyze functional connectivity in untreated and treated patients with schizophrenia, resting-state fMRI data were obtained for whole-brain functional connectivity analysis from 22 first-episode neuroleptic-naïve schizophrenia (NNS), 61 first-episode neuroleptic-treated schizophrenia (NTS) patients, and 60 healthy controls (HC). Reductions were found in untreated and treated patients in the functional connectivity between the posterior cingulate gyrus and precuneus, and this was correlated with the reduction in volition from the Positive and Negative Symptoms Scale (PANSS), that is in the willful initiation, sustenance, and control of thoughts, behavior, movements, and speech, and with the general and negative symptoms. In addition in both patient groups interhemispheric functional connectivity was weaker between the orbitofrontal cortex, amygdala and temporal pole. These functional connectivity changes and the related symptoms were not treated by the neuroleptics. Differences between the patient groups were that there were more strong functional connectivity links in the NNS patients (including in hippocampal, frontal, and striatal circuits) than in the NTS patients. These findings with a whole brain analysis in untreated and treated patients with schizophrenia provide evidence on some of the brain regions implicated in the volitional, other general, and negative symptoms, of schizophrenia that are not treated by neuroleptics so have implications for the development of other treatments; and provide evidence on some brain systems in which neuroleptics do alter the functional connectivity.
Item Type: | Journal Article | ||||||||||
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Subjects: | R Medicine > RC Internal medicine | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||||||||
Library of Congress Subject Headings (LCSH): | Schizophrenia -- Treatment | ||||||||||
Journal or Publication Title: | NeuroImage: Clinical | ||||||||||
Publisher: | Elsevier BV | ||||||||||
ISSN: | 2213-1582 | ||||||||||
Official Date: | 2014 | ||||||||||
Dates: |
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Volume: | Volume 6 | ||||||||||
Number of Pages: | 12 | ||||||||||
Page Range: | pp. 463-474 | ||||||||||
DOI: | 10.1016/j.nicl.2014.10.004 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||
Date of first compliant deposit: | 28 December 2015 | ||||||||||
Date of first compliant Open Access: | 28 December 2015 | ||||||||||
Embodied As: | 1 |
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